2 Unix SMB/CIFS implementation.
3 file opening and share modes
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Jeremy Allison 2001-2004
6 Copyright (C) Volker Lendecke 2005
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #include "smbd/globals.h"
25 extern const struct generic_mapping file_generic_mapping;
27 struct deferred_open_record {
28 bool delayed_for_oplocks;
32 static NTSTATUS create_file_unixpath(connection_struct *conn,
33 struct smb_request *req,
34 struct smb_filename *smb_fname,
36 uint32_t share_access,
37 uint32_t create_disposition,
38 uint32_t create_options,
39 uint32_t file_attributes,
40 uint32_t oplock_request,
41 uint64_t allocation_size,
42 struct security_descriptor *sd,
43 struct ea_list *ea_list,
45 files_struct **result,
48 /****************************************************************************
49 SMB1 file varient of se_access_check. Never test FILE_READ_ATTRIBUTES.
50 ****************************************************************************/
52 NTSTATUS smb1_file_se_access_check(const struct security_descriptor *sd,
53 const NT_USER_TOKEN *token,
54 uint32_t access_desired,
55 uint32_t *access_granted)
57 return se_access_check(sd,
59 (access_desired & ~FILE_READ_ATTRIBUTES),
63 /****************************************************************************
64 Check if we have open rights.
65 ****************************************************************************/
67 static NTSTATUS check_open_rights(struct connection_struct *conn,
68 const struct smb_filename *smb_fname,
70 uint32_t *access_granted)
72 /* Check if we have rights to open. */
74 struct security_descriptor *sd;
78 if (conn->server_info->utok.uid == 0 || conn->admin_user) {
79 /* I'm sorry sir, I didn't know you were root... */
80 *access_granted = access_mask;
81 if (access_mask & SEC_FLAG_MAXIMUM_ALLOWED) {
82 *access_granted |= FILE_GENERIC_ALL;
87 status = SMB_VFS_GET_NT_ACL(conn, smb_fname->base_name,
88 (OWNER_SECURITY_INFORMATION |
89 GROUP_SECURITY_INFORMATION |
90 DACL_SECURITY_INFORMATION),&sd);
92 if (!NT_STATUS_IS_OK(status)) {
93 DEBUG(10, ("check_open_rights: Could not get acl "
95 smb_fname_str_dbg(smb_fname),
100 status = smb1_file_se_access_check(sd,
101 conn->server_info->ptok,
107 DEBUG(10,("check_open_rights: file %s requesting "
108 "0x%x returning 0x%x (%s)\n",
109 smb_fname_str_dbg(smb_fname),
110 (unsigned int)access_mask,
111 (unsigned int)*access_granted,
112 nt_errstr(status) ));
117 /****************************************************************************
118 fd support routines - attempt to do a dos_open.
119 ****************************************************************************/
121 static NTSTATUS fd_open(struct connection_struct *conn,
122 struct smb_filename *smb_fname,
127 NTSTATUS status = NT_STATUS_OK;
131 * Never follow symlinks on a POSIX client. The
132 * client should be doing this.
135 if (fsp->posix_open || !lp_symlinks(SNUM(conn))) {
140 fsp->fh->fd = SMB_VFS_OPEN(conn, smb_fname, fsp, flags, mode);
141 if (fsp->fh->fd == -1) {
142 status = map_nt_error_from_unix(errno);
143 if (errno == EMFILE) {
144 static time_t last_warned = 0L;
146 if (time((time_t *) NULL) > last_warned) {
147 DEBUG(0,("Too many open files, unable "
148 "to open more! smbd's max "
150 lp_max_open_files()));
151 last_warned = time((time_t *) NULL);
157 DEBUG(10,("fd_open: name %s, flags = 0%o mode = 0%o, fd = %d. %s\n",
158 smb_fname_str_dbg(smb_fname), flags, (int)mode, fsp->fh->fd,
159 (fsp->fh->fd == -1) ? strerror(errno) : "" ));
164 /****************************************************************************
165 Close the file associated with a fsp.
166 ****************************************************************************/
168 NTSTATUS fd_close(files_struct *fsp)
172 if (fsp->fh->fd == -1) {
173 return NT_STATUS_OK; /* What we used to call a stat open. */
175 if (fsp->fh->ref_count > 1) {
176 return NT_STATUS_OK; /* Shared handle. Only close last reference. */
179 ret = SMB_VFS_CLOSE(fsp);
182 return map_nt_error_from_unix(errno);
187 /****************************************************************************
188 Change the ownership of a file to that of the parent directory.
189 Do this by fd if possible.
190 ****************************************************************************/
192 void change_file_owner_to_parent(connection_struct *conn,
193 const char *inherit_from_dir,
196 struct smb_filename *smb_fname_parent = NULL;
200 status = create_synthetic_smb_fname(talloc_tos(), inherit_from_dir,
201 NULL, NULL, &smb_fname_parent);
202 if (!NT_STATUS_IS_OK(status)) {
206 ret = SMB_VFS_STAT(conn, smb_fname_parent);
208 DEBUG(0,("change_file_owner_to_parent: failed to stat parent "
209 "directory %s. Error was %s\n",
210 smb_fname_str_dbg(smb_fname_parent),
216 ret = SMB_VFS_FCHOWN(fsp, smb_fname_parent->st.st_ex_uid, (gid_t)-1);
219 DEBUG(0,("change_file_owner_to_parent: failed to fchown "
220 "file %s to parent directory uid %u. Error "
221 "was %s\n", fsp->fsp_name,
222 (unsigned int)smb_fname_parent->st.st_ex_uid,
226 DEBUG(10,("change_file_owner_to_parent: changed new file %s to "
227 "parent directory uid %u.\n", fsp->fsp_name,
228 (unsigned int)smb_fname_parent->st.st_ex_uid));
230 TALLOC_FREE(smb_fname_parent);
233 NTSTATUS change_dir_owner_to_parent(connection_struct *conn,
234 const char *inherit_from_dir,
236 SMB_STRUCT_STAT *psbuf)
238 struct smb_filename *smb_fname_parent = NULL;
239 struct smb_filename *smb_fname_cwd = NULL;
240 char *saved_dir = NULL;
241 TALLOC_CTX *ctx = talloc_tos();
242 NTSTATUS status = NT_STATUS_OK;
245 status = create_synthetic_smb_fname(ctx, inherit_from_dir, NULL, NULL,
247 if (!NT_STATUS_IS_OK(status)) {
251 ret = SMB_VFS_STAT(conn, smb_fname_parent);
253 status = map_nt_error_from_unix(errno);
254 DEBUG(0,("change_dir_owner_to_parent: failed to stat parent "
255 "directory %s. Error was %s\n",
256 smb_fname_str_dbg(smb_fname_parent),
261 /* We've already done an lstat into psbuf, and we know it's a
262 directory. If we can cd into the directory and the dev/ino
263 are the same then we can safely chown without races as
264 we're locking the directory in place by being in it. This
265 should work on any UNIX (thanks tridge :-). JRA.
268 saved_dir = vfs_GetWd(ctx,conn);
270 status = map_nt_error_from_unix(errno);
271 DEBUG(0,("change_dir_owner_to_parent: failed to get "
272 "current working directory. Error was %s\n",
277 /* Chdir into the new path. */
278 if (vfs_ChDir(conn, fname) == -1) {
279 status = map_nt_error_from_unix(errno);
280 DEBUG(0,("change_dir_owner_to_parent: failed to change "
281 "current working directory to %s. Error "
282 "was %s\n", fname, strerror(errno) ));
286 status = create_synthetic_smb_fname(ctx, ".", NULL, NULL,
288 if (!NT_STATUS_IS_OK(status)) {
292 ret = SMB_VFS_STAT(conn, smb_fname_cwd);
294 status = map_nt_error_from_unix(errno);
295 DEBUG(0,("change_dir_owner_to_parent: failed to stat "
296 "directory '.' (%s) Error was %s\n",
297 fname, strerror(errno)));
301 /* Ensure we're pointing at the same place. */
302 if (smb_fname_cwd->st.st_ex_dev != psbuf->st_ex_dev ||
303 smb_fname_cwd->st.st_ex_ino != psbuf->st_ex_ino ||
304 smb_fname_cwd->st.st_ex_mode != psbuf->st_ex_mode ) {
305 DEBUG(0,("change_dir_owner_to_parent: "
306 "device/inode/mode on directory %s changed. "
307 "Refusing to chown !\n", fname ));
308 status = NT_STATUS_ACCESS_DENIED;
313 ret = SMB_VFS_CHOWN(conn, ".", smb_fname_parent->st.st_ex_uid,
317 status = map_nt_error_from_unix(errno);
318 DEBUG(10,("change_dir_owner_to_parent: failed to chown "
319 "directory %s to parent directory uid %u. "
320 "Error was %s\n", fname,
321 (unsigned int)smb_fname_parent->st.st_ex_uid,
326 DEBUG(10,("change_dir_owner_to_parent: changed ownership of new "
327 "directory %s to parent directory uid %u.\n",
328 fname, (unsigned int)smb_fname_parent->st.st_ex_uid ));
331 vfs_ChDir(conn,saved_dir);
333 TALLOC_FREE(smb_fname_parent);
334 TALLOC_FREE(smb_fname_cwd);
338 /****************************************************************************
340 ****************************************************************************/
342 static NTSTATUS open_file(files_struct *fsp,
343 connection_struct *conn,
344 struct smb_request *req,
345 const char *parent_dir,
346 struct smb_filename *smb_fname,
349 uint32 access_mask, /* client requested access mask. */
350 uint32 open_access_mask) /* what we're actually using in the open. */
353 NTSTATUS status = NT_STATUS_OK;
354 int accmode = (flags & O_ACCMODE);
355 int local_flags = flags;
356 bool file_existed = VALID_STAT(smb_fname->st);
361 status = get_full_smb_filename(talloc_tos(), smb_fname,
363 if (!NT_STATUS_IS_OK(status)) {
367 /* Check permissions */
370 * This code was changed after seeing a client open request
371 * containing the open mode of (DENY_WRITE/read-only) with
372 * the 'create if not exist' bit set. The previous code
373 * would fail to open the file read only on a read-only share
374 * as it was checking the flags parameter directly against O_RDONLY,
375 * this was failing as the flags parameter was set to O_RDONLY|O_CREAT.
379 if (!CAN_WRITE(conn)) {
380 /* It's a read-only share - fail if we wanted to write. */
381 if(accmode != O_RDONLY || (flags & O_TRUNC) || (flags & O_APPEND)) {
382 DEBUG(3,("Permission denied opening %s\n",
383 smb_fname_str_dbg(smb_fname)));
384 return NT_STATUS_ACCESS_DENIED;
385 } else if(flags & O_CREAT) {
386 /* We don't want to write - but we must make sure that
387 O_CREAT doesn't create the file if we have write
388 access into the directory.
390 flags &= ~(O_CREAT|O_EXCL);
391 local_flags &= ~(O_CREAT|O_EXCL);
396 * This little piece of insanity is inspired by the
397 * fact that an NT client can open a file for O_RDONLY,
398 * but set the create disposition to FILE_EXISTS_TRUNCATE.
399 * If the client *can* write to the file, then it expects to
400 * truncate the file, even though it is opening for readonly.
401 * Quicken uses this stupid trick in backup file creation...
402 * Thanks *greatly* to "David W. Chapman Jr." <dwcjr@inethouston.net>
403 * for helping track this one down. It didn't bite us in 2.0.x
404 * as we always opened files read-write in that release. JRA.
407 if ((accmode == O_RDONLY) && ((flags & O_TRUNC) == O_TRUNC)) {
408 DEBUG(10,("open_file: truncate requested on read-only open "
409 "for file %s\n", smb_fname_str_dbg(smb_fname)));
410 local_flags = (flags & ~O_ACCMODE)|O_RDWR;
413 if ((open_access_mask & (FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA|FILE_EXECUTE)) ||
414 (!file_existed && (local_flags & O_CREAT)) ||
415 ((local_flags & O_TRUNC) == O_TRUNC) ) {
419 * We can't actually truncate here as the file may be locked.
420 * open_file_ntcreate will take care of the truncate later. JRA.
423 local_flags &= ~O_TRUNC;
425 #if defined(O_NONBLOCK) && defined(S_ISFIFO)
427 * We would block on opening a FIFO with no one else on the
428 * other end. Do what we used to do and add O_NONBLOCK to the
432 if (file_existed && S_ISFIFO(smb_fname->st.st_ex_mode)) {
433 local_flags |= O_NONBLOCK;
437 /* Don't create files with Microsoft wildcard characters. */
440 * wildcard characters are allowed in stream names
441 * only test the basefilename
443 wild = fsp->base_fsp->fsp_name;
447 if ((local_flags & O_CREAT) && !file_existed &&
449 return NT_STATUS_OBJECT_NAME_INVALID;
452 /* Actually do the open */
453 status = fd_open(conn, smb_fname, fsp, local_flags, unx_mode);
454 if (!NT_STATUS_IS_OK(status)) {
455 DEBUG(3,("Error opening file %s (%s) (local_flags=%d) "
456 "(flags=%d)\n", smb_fname_str_dbg(smb_fname),
457 nt_errstr(status),local_flags,flags));
461 if ((local_flags & O_CREAT) && !file_existed) {
463 /* Inherit the ACL if required */
464 if (lp_inherit_perms(SNUM(conn))) {
465 inherit_access_posix_acl(conn, parent_dir, path,
469 /* Change the owner if required. */
470 if (lp_inherit_owner(SNUM(conn))) {
471 change_file_owner_to_parent(conn, parent_dir,
475 notify_fname(conn, NOTIFY_ACTION_ADDED,
476 FILE_NOTIFY_CHANGE_FILE_NAME, path);
480 fsp->fh->fd = -1; /* What we used to call a stat open. */
482 uint32_t access_granted = 0;
484 status = check_open_rights(conn,
488 if (!NT_STATUS_IS_OK(status)) {
489 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
491 * On NT_STATUS_ACCESS_DENIED, access_granted
492 * contains the denied bits.
495 if ((access_mask & FILE_WRITE_ATTRIBUTES) &&
496 (access_granted & FILE_WRITE_ATTRIBUTES) &&
497 (lp_map_readonly(SNUM(conn)) ||
498 lp_map_archive(SNUM(conn)) ||
499 lp_map_hidden(SNUM(conn)) ||
500 lp_map_system(SNUM(conn)))) {
501 access_granted &= ~FILE_WRITE_ATTRIBUTES;
503 DEBUG(10,("open_file: "
512 if ((access_mask & DELETE_ACCESS) &&
513 (access_granted & DELETE_ACCESS) &&
514 can_delete_file_in_directory(conn,
516 /* Were we trying to do a stat open
517 * for delete and didn't get DELETE
518 * access (only) ? Check if the
519 * directory allows DELETE_CHILD.
521 * http://blogs.msdn.com/oldnewthing/archive/2004/06/04/148426.aspx
524 access_granted &= ~DELETE_ACCESS;
526 DEBUG(10,("open_file: "
534 if (access_granted != 0) {
535 DEBUG(10,("open_file: Access "
542 } else if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND) &&
544 S_ISLNK(smb_fname->st.st_ex_mode)) {
545 /* This is a POSIX stat open for delete
546 * or rename on a symlink that points
548 DEBUG(10,("open_file: allowing POSIX "
549 "open on bad symlink %s\n",
553 DEBUG(10,("open_file: "
554 "check_open_rights on file "
556 smb_fname_str_dbg(smb_fname),
557 nt_errstr(status) ));
567 if (fsp->fh->fd == -1) {
568 ret = SMB_VFS_STAT(conn, smb_fname);
570 ret = SMB_VFS_FSTAT(fsp, &smb_fname->st);
571 /* If we have an fd, this stat should succeed. */
573 DEBUG(0,("Error doing fstat on open file %s "
575 smb_fname_str_dbg(smb_fname),
580 /* For a non-io open, this stat failing means file not found. JRA */
582 status = map_nt_error_from_unix(errno);
589 * POSIX allows read-only opens of directories. We don't
590 * want to do this (we use a different code path for this)
591 * so catch a directory open and return an EISDIR. JRA.
594 if(S_ISDIR(smb_fname->st.st_ex_mode)) {
597 return NT_STATUS_FILE_IS_A_DIRECTORY;
600 fsp->mode = smb_fname->st.st_ex_mode;
601 fsp->file_id = vfs_file_id_from_sbuf(conn, &smb_fname->st);
602 fsp->vuid = req ? req->vuid : UID_FIELD_INVALID;
603 fsp->file_pid = req ? req->smbpid : 0;
604 fsp->can_lock = True;
605 fsp->can_read = (access_mask & (FILE_READ_DATA)) ? True : False;
606 if (!CAN_WRITE(conn)) {
607 fsp->can_write = False;
609 fsp->can_write = (access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) ?
612 fsp->print_file = False;
613 fsp->modified = False;
614 fsp->sent_oplock_break = NO_BREAK_SENT;
615 fsp->is_directory = False;
616 if (conn->aio_write_behind_list &&
617 is_in_path(smb_fname->base_name, conn->aio_write_behind_list,
618 conn->case_sensitive)) {
619 fsp->aio_write_behind = True;
622 string_set(&fsp->fsp_name, path);
623 fsp->wcp = NULL; /* Write cache pointer. */
625 DEBUG(2,("%s opened file %s read=%s write=%s (numopen=%d)\n",
626 conn->server_info->unix_name,
628 BOOLSTR(fsp->can_read), BOOLSTR(fsp->can_write),
629 conn->num_files_open));
635 /*******************************************************************
636 Return True if the filename is one of the special executable types.
637 ********************************************************************/
639 bool is_executable(const char *fname)
641 if ((fname = strrchr_m(fname,'.'))) {
642 if (strequal(fname,".com") ||
643 strequal(fname,".dll") ||
644 strequal(fname,".exe") ||
645 strequal(fname,".sym")) {
652 /****************************************************************************
653 Check if we can open a file with a share mode.
654 Returns True if conflict, False if not.
655 ****************************************************************************/
657 static bool share_conflict(struct share_mode_entry *entry,
661 DEBUG(10,("share_conflict: entry->access_mask = 0x%x, "
662 "entry->share_access = 0x%x, "
663 "entry->private_options = 0x%x\n",
664 (unsigned int)entry->access_mask,
665 (unsigned int)entry->share_access,
666 (unsigned int)entry->private_options));
668 DEBUG(10,("share_conflict: access_mask = 0x%x, share_access = 0x%x\n",
669 (unsigned int)access_mask, (unsigned int)share_access));
671 if ((entry->access_mask & (FILE_WRITE_DATA|
675 DELETE_ACCESS)) == 0) {
676 DEBUG(10,("share_conflict: No conflict due to "
677 "entry->access_mask = 0x%x\n",
678 (unsigned int)entry->access_mask ));
682 if ((access_mask & (FILE_WRITE_DATA|
686 DELETE_ACCESS)) == 0) {
687 DEBUG(10,("share_conflict: No conflict due to "
688 "access_mask = 0x%x\n",
689 (unsigned int)access_mask ));
693 #if 1 /* JRA TEST - Superdebug. */
694 #define CHECK_MASK(num, am, right, sa, share) \
695 DEBUG(10,("share_conflict: [%d] am (0x%x) & right (0x%x) = 0x%x\n", \
696 (unsigned int)(num), (unsigned int)(am), \
697 (unsigned int)(right), (unsigned int)(am)&(right) )); \
698 DEBUG(10,("share_conflict: [%d] sa (0x%x) & share (0x%x) = 0x%x\n", \
699 (unsigned int)(num), (unsigned int)(sa), \
700 (unsigned int)(share), (unsigned int)(sa)&(share) )); \
701 if (((am) & (right)) && !((sa) & (share))) { \
702 DEBUG(10,("share_conflict: check %d conflict am = 0x%x, right = 0x%x, \
703 sa = 0x%x, share = 0x%x\n", (num), (unsigned int)(am), (unsigned int)(right), (unsigned int)(sa), \
704 (unsigned int)(share) )); \
708 #define CHECK_MASK(num, am, right, sa, share) \
709 if (((am) & (right)) && !((sa) & (share))) { \
710 DEBUG(10,("share_conflict: check %d conflict am = 0x%x, right = 0x%x, \
711 sa = 0x%x, share = 0x%x\n", (num), (unsigned int)(am), (unsigned int)(right), (unsigned int)(sa), \
712 (unsigned int)(share) )); \
717 CHECK_MASK(1, entry->access_mask, FILE_WRITE_DATA | FILE_APPEND_DATA,
718 share_access, FILE_SHARE_WRITE);
719 CHECK_MASK(2, access_mask, FILE_WRITE_DATA | FILE_APPEND_DATA,
720 entry->share_access, FILE_SHARE_WRITE);
722 CHECK_MASK(3, entry->access_mask, FILE_READ_DATA | FILE_EXECUTE,
723 share_access, FILE_SHARE_READ);
724 CHECK_MASK(4, access_mask, FILE_READ_DATA | FILE_EXECUTE,
725 entry->share_access, FILE_SHARE_READ);
727 CHECK_MASK(5, entry->access_mask, DELETE_ACCESS,
728 share_access, FILE_SHARE_DELETE);
729 CHECK_MASK(6, access_mask, DELETE_ACCESS,
730 entry->share_access, FILE_SHARE_DELETE);
732 DEBUG(10,("share_conflict: No conflict.\n"));
736 #if defined(DEVELOPER)
737 static void validate_my_share_entries(int num,
738 struct share_mode_entry *share_entry)
742 if (!procid_is_me(&share_entry->pid)) {
746 if (is_deferred_open_entry(share_entry) &&
747 !open_was_deferred(share_entry->op_mid)) {
748 char *str = talloc_asprintf(talloc_tos(),
749 "Got a deferred entry without a request: "
751 share_mode_str(talloc_tos(), num, share_entry));
755 if (!is_valid_share_mode_entry(share_entry)) {
759 fsp = file_find_dif(share_entry->id,
760 share_entry->share_file_id);
762 DEBUG(0,("validate_my_share_entries: PANIC : %s\n",
763 share_mode_str(talloc_tos(), num, share_entry) ));
764 smb_panic("validate_my_share_entries: Cannot match a "
765 "share entry with an open file\n");
768 if (is_deferred_open_entry(share_entry) ||
769 is_unused_share_mode_entry(share_entry)) {
773 if ((share_entry->op_type == NO_OPLOCK) &&
774 (fsp->oplock_type == FAKE_LEVEL_II_OPLOCK)) {
775 /* Someone has already written to it, but I haven't yet
780 if (((uint16)fsp->oplock_type) != share_entry->op_type) {
789 DEBUG(0,("validate_my_share_entries: PANIC : %s\n",
790 share_mode_str(talloc_tos(), num, share_entry) ));
791 str = talloc_asprintf(talloc_tos(),
792 "validate_my_share_entries: "
793 "file %s, oplock_type = 0x%x, op_type = 0x%x\n",
794 fsp->fsp_name, (unsigned int)fsp->oplock_type,
795 (unsigned int)share_entry->op_type );
801 bool is_stat_open(uint32 access_mask)
803 return (access_mask &&
804 ((access_mask & ~(SYNCHRONIZE_ACCESS| FILE_READ_ATTRIBUTES|
805 FILE_WRITE_ATTRIBUTES))==0) &&
806 ((access_mask & (SYNCHRONIZE_ACCESS|FILE_READ_ATTRIBUTES|
807 FILE_WRITE_ATTRIBUTES)) != 0));
810 /****************************************************************************
811 Deal with share modes
812 Invarient: Share mode must be locked on entry and exit.
813 Returns -1 on error, or number of share modes on success (may be zero).
814 ****************************************************************************/
816 static NTSTATUS open_mode_check(connection_struct *conn,
817 struct share_mode_lock *lck,
820 uint32 create_options,
825 if(lck->num_share_modes == 0) {
829 *file_existed = True;
831 /* A delete on close prohibits everything */
833 if (lck->delete_on_close) {
834 return NT_STATUS_DELETE_PENDING;
837 if (is_stat_open(access_mask)) {
838 /* Stat open that doesn't trigger oplock breaks or share mode
839 * checks... ! JRA. */
844 * Check if the share modes will give us access.
847 #if defined(DEVELOPER)
848 for(i = 0; i < lck->num_share_modes; i++) {
849 validate_my_share_entries(i, &lck->share_modes[i]);
853 if (!lp_share_modes(SNUM(conn))) {
857 /* Now we check the share modes, after any oplock breaks. */
858 for(i = 0; i < lck->num_share_modes; i++) {
860 if (!is_valid_share_mode_entry(&lck->share_modes[i])) {
864 /* someone else has a share lock on it, check to see if we can
866 if (share_conflict(&lck->share_modes[i],
867 access_mask, share_access)) {
868 return NT_STATUS_SHARING_VIOLATION;
875 static bool is_delete_request(files_struct *fsp) {
876 return ((fsp->access_mask == DELETE_ACCESS) &&
877 (fsp->oplock_type == NO_OPLOCK));
881 * Send a break message to the oplock holder and delay the open for
885 static NTSTATUS send_break_message(files_struct *fsp,
886 struct share_mode_entry *exclusive,
891 char msg[MSG_SMB_SHARE_MODE_ENTRY_SIZE];
893 DEBUG(10, ("Sending break request to PID %s\n",
894 procid_str_static(&exclusive->pid)));
895 exclusive->op_mid = mid;
897 /* Create the message. */
898 share_mode_entry_to_message(msg, exclusive);
900 /* Add in the FORCE_OPLOCK_BREAK_TO_NONE bit in the message if set. We
901 don't want this set in the share mode struct pointed to by lck. */
903 if (oplock_request & FORCE_OPLOCK_BREAK_TO_NONE) {
904 SSVAL(msg,6,exclusive->op_type | FORCE_OPLOCK_BREAK_TO_NONE);
907 status = messaging_send_buf(smbd_messaging_context(), exclusive->pid,
908 MSG_SMB_BREAK_REQUEST,
910 MSG_SMB_SHARE_MODE_ENTRY_SIZE);
911 if (!NT_STATUS_IS_OK(status)) {
912 DEBUG(3, ("Could not send oplock break message: %s\n",
920 * 1) No files open at all or internal open: Grant whatever the client wants.
922 * 2) Exclusive (or batch) oplock around: If the requested access is a delete
923 * request, break if the oplock around is a batch oplock. If it's another
924 * requested access type, break.
926 * 3) Only level2 around: Grant level2 and do nothing else.
929 static bool delay_for_oplocks(struct share_mode_lock *lck,
936 struct share_mode_entry *exclusive = NULL;
937 bool valid_entry = false;
938 bool have_level2 = false;
939 bool have_a_none_oplock = false;
940 bool allow_level2 = (global_client_caps & CAP_LEVEL_II_OPLOCKS) &&
941 lp_level2_oplocks(SNUM(fsp->conn));
943 if (oplock_request & INTERNAL_OPEN_ONLY) {
944 fsp->oplock_type = NO_OPLOCK;
947 if ((oplock_request & INTERNAL_OPEN_ONLY) || is_stat_open(fsp->access_mask)) {
951 for (i=0; i<lck->num_share_modes; i++) {
953 if (!is_valid_share_mode_entry(&lck->share_modes[i])) {
957 /* At least one entry is not an invalid or deferred entry. */
960 if (pass_number == 1) {
961 if (BATCH_OPLOCK_TYPE(lck->share_modes[i].op_type)) {
962 SMB_ASSERT(exclusive == NULL);
963 exclusive = &lck->share_modes[i];
966 if (EXCLUSIVE_OPLOCK_TYPE(lck->share_modes[i].op_type)) {
967 SMB_ASSERT(exclusive == NULL);
968 exclusive = &lck->share_modes[i];
972 if (LEVEL_II_OPLOCK_TYPE(lck->share_modes[i].op_type)) {
973 SMB_ASSERT(exclusive == NULL);
977 if (lck->share_modes[i].op_type == NO_OPLOCK) {
978 have_a_none_oplock = true;
982 if (exclusive != NULL) { /* Found an exclusive oplock */
983 bool delay_it = is_delete_request(fsp) ?
984 BATCH_OPLOCK_TYPE(exclusive->op_type) : true;
985 SMB_ASSERT(!have_level2);
987 send_break_message(fsp, exclusive, mid, oplock_request);
993 * Match what was requested (fsp->oplock_type) with
994 * what was found in the existing share modes.
998 /* All entries are placeholders or deferred.
999 * Directly grant whatever the client wants. */
1000 if (fsp->oplock_type == NO_OPLOCK) {
1001 /* Store a level2 oplock, but don't tell the client */
1002 fsp->oplock_type = FAKE_LEVEL_II_OPLOCK;
1004 } else if (have_a_none_oplock) {
1005 fsp->oplock_type = NO_OPLOCK;
1006 } else if (have_level2) {
1007 if (fsp->oplock_type == NO_OPLOCK ||
1008 fsp->oplock_type == FAKE_LEVEL_II_OPLOCK) {
1009 /* Store a level2 oplock, but don't tell the client */
1010 fsp->oplock_type = FAKE_LEVEL_II_OPLOCK;
1012 fsp->oplock_type = LEVEL_II_OPLOCK;
1015 /* This case can never happen. */
1020 * Don't grant level2 to clients that don't want them
1021 * or if we've turned them off.
1023 if (fsp->oplock_type == LEVEL_II_OPLOCK && !allow_level2) {
1024 fsp->oplock_type = FAKE_LEVEL_II_OPLOCK;
1027 DEBUG(10,("delay_for_oplocks: oplock type 0x%x on file %s\n",
1028 fsp->oplock_type, fsp->fsp_name));
1034 bool request_timed_out(struct timeval request_time,
1035 struct timeval timeout)
1037 struct timeval now, end_time;
1039 end_time = timeval_sum(&request_time, &timeout);
1040 return (timeval_compare(&end_time, &now) < 0);
1043 /****************************************************************************
1044 Handle the 1 second delay in returning a SHARING_VIOLATION error.
1045 ****************************************************************************/
1047 static void defer_open(struct share_mode_lock *lck,
1048 struct timeval request_time,
1049 struct timeval timeout,
1050 struct smb_request *req,
1051 struct deferred_open_record *state)
1055 /* Paranoia check */
1057 for (i=0; i<lck->num_share_modes; i++) {
1058 struct share_mode_entry *e = &lck->share_modes[i];
1060 if (!is_deferred_open_entry(e)) {
1064 if (procid_is_me(&e->pid) && (e->op_mid == req->mid)) {
1065 DEBUG(0, ("Trying to defer an already deferred "
1066 "request: mid=%d, exiting\n", req->mid));
1067 exit_server("attempt to defer a deferred request");
1071 /* End paranoia check */
1073 DEBUG(10,("defer_open_sharing_error: time [%u.%06u] adding deferred "
1074 "open entry for mid %u\n",
1075 (unsigned int)request_time.tv_sec,
1076 (unsigned int)request_time.tv_usec,
1077 (unsigned int)req->mid));
1079 if (!push_deferred_smb_message(req, request_time, timeout,
1080 (char *)state, sizeof(*state))) {
1081 exit_server("push_deferred_smb_message failed");
1083 add_deferred_open(lck, req->mid, request_time, state->id);
1087 /****************************************************************************
1088 On overwrite open ensure that the attributes match.
1089 ****************************************************************************/
1091 bool open_match_attributes(connection_struct *conn,
1092 uint32 old_dos_attr,
1093 uint32 new_dos_attr,
1094 mode_t existing_unx_mode,
1095 mode_t new_unx_mode,
1096 mode_t *returned_unx_mode)
1098 uint32 noarch_old_dos_attr, noarch_new_dos_attr;
1100 noarch_old_dos_attr = (old_dos_attr & ~FILE_ATTRIBUTE_ARCHIVE);
1101 noarch_new_dos_attr = (new_dos_attr & ~FILE_ATTRIBUTE_ARCHIVE);
1103 if((noarch_old_dos_attr == 0 && noarch_new_dos_attr != 0) ||
1104 (noarch_old_dos_attr != 0 && ((noarch_old_dos_attr & noarch_new_dos_attr) == noarch_old_dos_attr))) {
1105 *returned_unx_mode = new_unx_mode;
1107 *returned_unx_mode = (mode_t)0;
1110 DEBUG(10,("open_match_attributes: old_dos_attr = 0x%x, "
1111 "existing_unx_mode = 0%o, new_dos_attr = 0x%x "
1112 "returned_unx_mode = 0%o\n",
1113 (unsigned int)old_dos_attr,
1114 (unsigned int)existing_unx_mode,
1115 (unsigned int)new_dos_attr,
1116 (unsigned int)*returned_unx_mode ));
1118 /* If we're mapping SYSTEM and HIDDEN ensure they match. */
1119 if (lp_map_system(SNUM(conn)) || lp_store_dos_attributes(SNUM(conn))) {
1120 if ((old_dos_attr & FILE_ATTRIBUTE_SYSTEM) &&
1121 !(new_dos_attr & FILE_ATTRIBUTE_SYSTEM)) {
1125 if (lp_map_hidden(SNUM(conn)) || lp_store_dos_attributes(SNUM(conn))) {
1126 if ((old_dos_attr & FILE_ATTRIBUTE_HIDDEN) &&
1127 !(new_dos_attr & FILE_ATTRIBUTE_HIDDEN)) {
1134 /****************************************************************************
1135 Special FCB or DOS processing in the case of a sharing violation.
1136 Try and find a duplicated file handle.
1137 ****************************************************************************/
1139 NTSTATUS fcb_or_dos_open(struct smb_request *req,
1140 connection_struct *conn,
1141 files_struct *fsp_to_dup_into,
1147 uint32 share_access,
1148 uint32 create_options)
1152 DEBUG(5,("fcb_or_dos_open: attempting old open semantics for "
1153 "file %s.\n", fname ));
1155 for(fsp = file_find_di_first(id); fsp;
1156 fsp = file_find_di_next(fsp)) {
1158 DEBUG(10,("fcb_or_dos_open: checking file %s, fd = %d, "
1159 "vuid = %u, file_pid = %u, private_options = 0x%x "
1160 "access_mask = 0x%x\n", fsp->fsp_name,
1161 fsp->fh->fd, (unsigned int)fsp->vuid,
1162 (unsigned int)fsp->file_pid,
1163 (unsigned int)fsp->fh->private_options,
1164 (unsigned int)fsp->access_mask ));
1166 if (fsp->fh->fd != -1 &&
1167 fsp->vuid == vuid &&
1168 fsp->file_pid == file_pid &&
1169 (fsp->fh->private_options & (NTCREATEX_OPTIONS_PRIVATE_DENY_DOS |
1170 NTCREATEX_OPTIONS_PRIVATE_DENY_FCB)) &&
1171 (fsp->access_mask & FILE_WRITE_DATA) &&
1172 strequal(fsp->fsp_name, fname)) {
1173 DEBUG(10,("fcb_or_dos_open: file match\n"));
1179 return NT_STATUS_NOT_FOUND;
1182 /* quite an insane set of semantics ... */
1183 if (is_executable(fname) &&
1184 (fsp->fh->private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS)) {
1185 DEBUG(10,("fcb_or_dos_open: file fail due to is_executable.\n"));
1186 return NT_STATUS_INVALID_PARAMETER;
1189 /* We need to duplicate this fsp. */
1190 dup_file_fsp(req, fsp, access_mask, share_access,
1191 create_options, fsp_to_dup_into);
1193 return NT_STATUS_OK;
1196 /****************************************************************************
1197 Open a file with a share mode - old openX method - map into NTCreate.
1198 ****************************************************************************/
1200 bool map_open_params_to_ntcreate(const char *fname, int deny_mode, int open_func,
1201 uint32 *paccess_mask,
1202 uint32 *pshare_mode,
1203 uint32 *pcreate_disposition,
1204 uint32 *pcreate_options)
1208 uint32 create_disposition;
1209 uint32 create_options = FILE_NON_DIRECTORY_FILE;
1211 DEBUG(10,("map_open_params_to_ntcreate: fname = %s, deny_mode = 0x%x, "
1212 "open_func = 0x%x\n",
1213 fname, (unsigned int)deny_mode, (unsigned int)open_func ));
1215 /* Create the NT compatible access_mask. */
1216 switch (GET_OPENX_MODE(deny_mode)) {
1217 case DOS_OPEN_EXEC: /* Implies read-only - used to be FILE_READ_DATA */
1218 case DOS_OPEN_RDONLY:
1219 access_mask = FILE_GENERIC_READ;
1221 case DOS_OPEN_WRONLY:
1222 access_mask = FILE_GENERIC_WRITE;
1226 access_mask = FILE_GENERIC_READ|FILE_GENERIC_WRITE;
1229 DEBUG(10,("map_open_params_to_ntcreate: bad open mode = 0x%x\n",
1230 (unsigned int)GET_OPENX_MODE(deny_mode)));
1234 /* Create the NT compatible create_disposition. */
1235 switch (open_func) {
1236 case OPENX_FILE_EXISTS_FAIL|OPENX_FILE_CREATE_IF_NOT_EXIST:
1237 create_disposition = FILE_CREATE;
1240 case OPENX_FILE_EXISTS_OPEN:
1241 create_disposition = FILE_OPEN;
1244 case OPENX_FILE_EXISTS_OPEN|OPENX_FILE_CREATE_IF_NOT_EXIST:
1245 create_disposition = FILE_OPEN_IF;
1248 case OPENX_FILE_EXISTS_TRUNCATE:
1249 create_disposition = FILE_OVERWRITE;
1252 case OPENX_FILE_EXISTS_TRUNCATE|OPENX_FILE_CREATE_IF_NOT_EXIST:
1253 create_disposition = FILE_OVERWRITE_IF;
1257 /* From samba4 - to be confirmed. */
1258 if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_EXEC) {
1259 create_disposition = FILE_CREATE;
1262 DEBUG(10,("map_open_params_to_ntcreate: bad "
1263 "open_func 0x%x\n", (unsigned int)open_func));
1267 /* Create the NT compatible share modes. */
1268 switch (GET_DENY_MODE(deny_mode)) {
1270 share_mode = FILE_SHARE_NONE;
1274 share_mode = FILE_SHARE_READ;
1278 share_mode = FILE_SHARE_WRITE;
1282 share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
1286 create_options |= NTCREATEX_OPTIONS_PRIVATE_DENY_DOS;
1287 if (is_executable(fname)) {
1288 share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
1290 if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_RDONLY) {
1291 share_mode = FILE_SHARE_READ;
1293 share_mode = FILE_SHARE_NONE;
1299 create_options |= NTCREATEX_OPTIONS_PRIVATE_DENY_FCB;
1300 share_mode = FILE_SHARE_NONE;
1304 DEBUG(10,("map_open_params_to_ntcreate: bad deny_mode 0x%x\n",
1305 (unsigned int)GET_DENY_MODE(deny_mode) ));
1309 DEBUG(10,("map_open_params_to_ntcreate: file %s, access_mask = 0x%x, "
1310 "share_mode = 0x%x, create_disposition = 0x%x, "
1311 "create_options = 0x%x\n",
1313 (unsigned int)access_mask,
1314 (unsigned int)share_mode,
1315 (unsigned int)create_disposition,
1316 (unsigned int)create_options ));
1319 *paccess_mask = access_mask;
1322 *pshare_mode = share_mode;
1324 if (pcreate_disposition) {
1325 *pcreate_disposition = create_disposition;
1327 if (pcreate_options) {
1328 *pcreate_options = create_options;
1335 static void schedule_defer_open(struct share_mode_lock *lck,
1336 struct timeval request_time,
1337 struct smb_request *req)
1339 struct deferred_open_record state;
1341 /* This is a relative time, added to the absolute
1342 request_time value to get the absolute timeout time.
1343 Note that if this is the second or greater time we enter
1344 this codepath for this particular request mid then
1345 request_time is left as the absolute time of the *first*
1346 time this request mid was processed. This is what allows
1347 the request to eventually time out. */
1349 struct timeval timeout;
1351 /* Normally the smbd we asked should respond within
1352 * OPLOCK_BREAK_TIMEOUT seconds regardless of whether
1353 * the client did, give twice the timeout as a safety
1354 * measure here in case the other smbd is stuck
1355 * somewhere else. */
1357 timeout = timeval_set(OPLOCK_BREAK_TIMEOUT*2, 0);
1359 /* Nothing actually uses state.delayed_for_oplocks
1360 but it's handy to differentiate in debug messages
1361 between a 30 second delay due to oplock break, and
1362 a 1 second delay for share mode conflicts. */
1364 state.delayed_for_oplocks = True;
1367 if (!request_timed_out(request_time, timeout)) {
1368 defer_open(lck, request_time, timeout, req, &state);
1372 /****************************************************************************
1373 Work out what access_mask to use from what the client sent us.
1374 ****************************************************************************/
1376 static NTSTATUS calculate_access_mask(connection_struct *conn,
1377 const struct smb_filename *smb_fname,
1379 uint32_t access_mask,
1380 uint32_t *access_mask_out)
1385 * Convert GENERIC bits to specific bits.
1388 se_map_generic(&access_mask, &file_generic_mapping);
1390 /* Calculate MAXIMUM_ALLOWED_ACCESS if requested. */
1391 if (access_mask & MAXIMUM_ALLOWED_ACCESS) {
1394 struct security_descriptor *sd;
1395 uint32_t access_granted = 0;
1397 status = SMB_VFS_GET_NT_ACL(conn, smb_fname->base_name,
1398 (OWNER_SECURITY_INFORMATION |
1399 GROUP_SECURITY_INFORMATION |
1400 DACL_SECURITY_INFORMATION),&sd);
1402 if (!NT_STATUS_IS_OK(status)) {
1403 DEBUG(10, ("calculate_access_mask: Could not get acl "
1405 smb_fname_str_dbg(smb_fname),
1406 nt_errstr(status)));
1407 return NT_STATUS_ACCESS_DENIED;
1410 status = smb1_file_se_access_check(sd,
1411 conn->server_info->ptok,
1417 if (!NT_STATUS_IS_OK(status)) {
1418 DEBUG(10, ("calculate_access_mask: Access denied on "
1419 "file %s: when calculating maximum access\n",
1420 smb_fname_str_dbg(smb_fname)));
1421 return NT_STATUS_ACCESS_DENIED;
1424 access_mask = access_granted;
1426 access_mask = FILE_GENERIC_ALL;
1430 *access_mask_out = access_mask;
1431 return NT_STATUS_OK;
1434 /****************************************************************************
1435 Open a file with a share mode. Passed in an already created files_struct *.
1436 ****************************************************************************/
1438 static NTSTATUS open_file_ntcreate(connection_struct *conn,
1439 struct smb_request *req,
1440 struct smb_filename *smb_fname,
1441 uint32 access_mask, /* access bits (FILE_READ_DATA etc.) */
1442 uint32 share_access, /* share constants (FILE_SHARE_READ etc) */
1443 uint32 create_disposition, /* FILE_OPEN_IF etc. */
1444 uint32 create_options, /* options such as delete on close. */
1445 uint32 new_dos_attributes, /* attributes used for new file. */
1446 int oplock_request, /* internal Samba oplock codes. */
1447 /* Information (FILE_EXISTS etc.) */
1453 bool file_existed = VALID_STAT(smb_fname->st);
1454 bool def_acl = False;
1455 bool posix_open = False;
1456 bool new_file_created = False;
1457 bool clear_ads = false;
1459 NTSTATUS fsp_open = NT_STATUS_ACCESS_DENIED;
1460 mode_t new_unx_mode = (mode_t)0;
1461 mode_t unx_mode = (mode_t)0;
1463 uint32 existing_dos_attributes = 0;
1464 struct pending_message_list *pml = NULL;
1465 struct timeval request_time = timeval_zero();
1466 struct share_mode_lock *lck = NULL;
1467 uint32 open_access_mask = access_mask;
1475 status = get_full_smb_filename(talloc_tos(), smb_fname,
1477 if (!NT_STATUS_IS_OK(status)) {
1481 if (conn->printer) {
1483 * Printers are handled completely differently.
1484 * Most of the passed parameters are ignored.
1488 *pinfo = FILE_WAS_CREATED;
1491 DEBUG(10, ("open_file_ntcreate: printer open fname=%s\n",
1492 smb_fname_str_dbg(smb_fname)));
1495 DEBUG(0,("open_file_ntcreate: printer open without "
1496 "an SMB request!\n"));
1497 return NT_STATUS_INTERNAL_ERROR;
1500 return print_fsp_open(req, conn, fname, req->vuid, fsp,
1504 if (!parent_dirname(talloc_tos(), smb_fname->base_name, &parent_dir,
1506 return NT_STATUS_NO_MEMORY;
1509 if (new_dos_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1511 unx_mode = (mode_t)(new_dos_attributes & ~FILE_FLAG_POSIX_SEMANTICS);
1512 new_dos_attributes = 0;
1514 /* We add aARCH to this as this mode is only used if the file is
1516 unx_mode = unix_mode(conn, new_dos_attributes | aARCH,
1517 smb_fname, parent_dir);
1520 DEBUG(10, ("open_file_ntcreate: fname=%s, dos_attrs=0x%x "
1521 "access_mask=0x%x share_access=0x%x "
1522 "create_disposition = 0x%x create_options=0x%x "
1523 "unix mode=0%o oplock_request=%d\n",
1524 smb_fname_str_dbg(smb_fname), new_dos_attributes,
1525 access_mask, share_access, create_disposition,
1526 create_options, (unsigned int)unx_mode, oplock_request));
1528 if ((req == NULL) && ((oplock_request & INTERNAL_OPEN_ONLY) == 0)) {
1529 DEBUG(0, ("No smb request but not an internal only open!\n"));
1530 return NT_STATUS_INTERNAL_ERROR;
1534 * Only non-internal opens can be deferred at all
1538 && ((pml = get_open_deferred_message(req->mid)) != NULL)) {
1539 struct deferred_open_record *state =
1540 (struct deferred_open_record *)pml->private_data.data;
1542 /* Remember the absolute time of the original
1543 request with this mid. We'll use it later to
1544 see if this has timed out. */
1546 request_time = pml->request_time;
1548 /* Remove the deferred open entry under lock. */
1549 lck = get_share_mode_lock(talloc_tos(), state->id, NULL, NULL,
1552 DEBUG(0, ("could not get share mode lock\n"));
1554 del_deferred_open_entry(lck, req->mid);
1558 /* Ensure we don't reprocess this message. */
1559 remove_deferred_open_smb_message(req->mid);
1562 status = check_name(conn, smb_fname->base_name);
1563 if (!NT_STATUS_IS_OK(status)) {
1568 new_dos_attributes &= SAMBA_ATTRIBUTES_MASK;
1570 existing_dos_attributes = dos_mode(conn, fname,
1575 /* ignore any oplock requests if oplocks are disabled */
1576 if (!lp_oplocks(SNUM(conn)) || global_client_failed_oplock_break ||
1577 IS_VETO_OPLOCK_PATH(conn, smb_fname->base_name)) {
1578 /* Mask off everything except the private Samba bits. */
1579 oplock_request &= SAMBA_PRIVATE_OPLOCK_MASK;
1582 /* this is for OS/2 long file names - say we don't support them */
1583 if (!lp_posix_pathnames() && strstr(smb_fname->base_name,".+,;=[].")) {
1584 /* OS/2 Workplace shell fix may be main code stream in a later
1586 DEBUG(5,("open_file_ntcreate: OS/2 long filenames are not "
1588 if (use_nt_status()) {
1589 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1591 return NT_STATUS_DOS(ERRDOS, ERRcannotopen);
1594 switch( create_disposition ) {
1596 * Currently we're using FILE_SUPERSEDE as the same as
1597 * FILE_OVERWRITE_IF but they really are
1598 * different. FILE_SUPERSEDE deletes an existing file
1599 * (requiring delete access) then recreates it.
1601 case FILE_SUPERSEDE:
1602 /* If file exists replace/overwrite. If file doesn't
1604 flags2 |= (O_CREAT | O_TRUNC);
1608 case FILE_OVERWRITE_IF:
1609 /* If file exists replace/overwrite. If file doesn't
1611 flags2 |= (O_CREAT | O_TRUNC);
1616 /* If file exists open. If file doesn't exist error. */
1617 if (!file_existed) {
1618 DEBUG(5,("open_file_ntcreate: FILE_OPEN "
1619 "requested for file %s and file "
1621 smb_fname_str_dbg(smb_fname)));
1623 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1627 case FILE_OVERWRITE:
1628 /* If file exists overwrite. If file doesn't exist
1630 if (!file_existed) {
1631 DEBUG(5,("open_file_ntcreate: FILE_OVERWRITE "
1632 "requested for file %s and file "
1634 smb_fname_str_dbg(smb_fname) ));
1636 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1643 /* If file exists error. If file doesn't exist
1646 DEBUG(5,("open_file_ntcreate: FILE_CREATE "
1647 "requested for file %s and file "
1648 "already exists.\n",
1649 smb_fname_str_dbg(smb_fname)));
1650 if (S_ISDIR(smb_fname->st.st_ex_mode)) {
1655 return map_nt_error_from_unix(errno);
1657 flags2 |= (O_CREAT|O_EXCL);
1661 /* If file exists open. If file doesn't exist
1667 return NT_STATUS_INVALID_PARAMETER;
1670 /* We only care about matching attributes on file exists and
1673 if (!posix_open && file_existed && ((create_disposition == FILE_OVERWRITE) ||
1674 (create_disposition == FILE_OVERWRITE_IF))) {
1675 if (!open_match_attributes(conn, existing_dos_attributes,
1677 smb_fname->st.st_ex_mode,
1678 unx_mode, &new_unx_mode)) {
1679 DEBUG(5,("open_file_ntcreate: attributes missmatch "
1680 "for file %s (%x %x) (0%o, 0%o)\n",
1681 smb_fname_str_dbg(smb_fname),
1682 existing_dos_attributes,
1684 (unsigned int)smb_fname->st.st_ex_mode,
1685 (unsigned int)unx_mode ));
1687 return NT_STATUS_ACCESS_DENIED;
1691 status = calculate_access_mask(conn, smb_fname, file_existed,
1694 if (!NT_STATUS_IS_OK(status)) {
1695 DEBUG(10, ("open_file_ntcreate: calculate_access_mask "
1696 "on file %s returned %s\n",
1697 smb_fname_str_dbg(smb_fname), nt_errstr(status)));
1701 open_access_mask = access_mask;
1703 if ((flags2 & O_TRUNC) || (oplock_request & FORCE_OPLOCK_BREAK_TO_NONE)) {
1704 open_access_mask |= FILE_WRITE_DATA; /* This will cause oplock breaks. */
1707 DEBUG(10, ("open_file_ntcreate: fname=%s, after mapping "
1708 "access_mask=0x%x\n", smb_fname_str_dbg(smb_fname),
1712 * Note that we ignore the append flag as append does not
1713 * mean the same thing under DOS and Unix.
1716 if ((access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) ||
1717 (oplock_request & FORCE_OPLOCK_BREAK_TO_NONE)) {
1718 /* DENY_DOS opens are always underlying read-write on the
1719 file handle, no matter what the requested access mask
1721 if ((create_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS) ||
1722 access_mask & (FILE_READ_ATTRIBUTES|FILE_READ_DATA|FILE_READ_EA|FILE_EXECUTE)) {
1732 * Currently we only look at FILE_WRITE_THROUGH for create options.
1736 if ((create_options & FILE_WRITE_THROUGH) && lp_strict_sync(SNUM(conn))) {
1741 if (posix_open && (access_mask & FILE_APPEND_DATA)) {
1745 if (!posix_open && !CAN_WRITE(conn)) {
1747 * We should really return a permission denied error if either
1748 * O_CREAT or O_TRUNC are set, but for compatibility with
1749 * older versions of Samba we just AND them out.
1751 flags2 &= ~(O_CREAT|O_TRUNC);
1755 * Ensure we can't write on a read-only share or file.
1758 if (flags != O_RDONLY && file_existed &&
1759 (!CAN_WRITE(conn) || IS_DOS_READONLY(existing_dos_attributes))) {
1760 DEBUG(5,("open_file_ntcreate: write access requested for "
1761 "file %s on read only %s\n",
1762 smb_fname_str_dbg(smb_fname),
1763 !CAN_WRITE(conn) ? "share" : "file" ));
1765 return NT_STATUS_ACCESS_DENIED;
1768 fsp->file_id = vfs_file_id_from_sbuf(conn, &smb_fname->st);
1769 fsp->share_access = share_access;
1770 fsp->fh->private_options = create_options;
1771 fsp->access_mask = open_access_mask; /* We change this to the
1772 * requested access_mask after
1773 * the open is done. */
1774 fsp->posix_open = posix_open;
1776 /* Ensure no SAMBA_PRIVATE bits can be set. */
1777 fsp->oplock_type = (oplock_request & ~SAMBA_PRIVATE_OPLOCK_MASK);
1779 if (timeval_is_zero(&request_time)) {
1780 request_time = fsp->open_time;
1784 struct timespec old_write_time = smb_fname->st.st_ex_mtime;
1785 id = vfs_file_id_from_sbuf(conn, &smb_fname->st);
1787 lck = get_share_mode_lock(talloc_tos(), id,
1789 fname, &old_write_time);
1792 DEBUG(0, ("Could not get share mode lock\n"));
1793 return NT_STATUS_SHARING_VIOLATION;
1796 /* First pass - send break only on batch oplocks. */
1798 && delay_for_oplocks(lck, fsp, req->mid, 1,
1800 schedule_defer_open(lck, request_time, req);
1802 return NT_STATUS_SHARING_VIOLATION;
1805 /* Use the client requested access mask here, not the one we
1807 status = open_mode_check(conn, lck, access_mask, share_access,
1808 create_options, &file_existed);
1810 if (NT_STATUS_IS_OK(status)) {
1811 /* We might be going to allow this open. Check oplock
1813 /* Second pass - send break for both batch or
1814 * exclusive oplocks. */
1816 && delay_for_oplocks(lck, fsp, req->mid, 2,
1818 schedule_defer_open(lck, request_time, req);
1820 return NT_STATUS_SHARING_VIOLATION;
1824 if (NT_STATUS_EQUAL(status, NT_STATUS_DELETE_PENDING)) {
1825 /* DELETE_PENDING is not deferred for a second */
1830 if (!NT_STATUS_IS_OK(status)) {
1831 uint32 can_access_mask;
1832 bool can_access = True;
1834 SMB_ASSERT(NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION));
1836 /* Check if this can be done with the deny_dos and fcb
1838 if (create_options &
1839 (NTCREATEX_OPTIONS_PRIVATE_DENY_DOS|
1840 NTCREATEX_OPTIONS_PRIVATE_DENY_FCB)) {
1842 DEBUG(0, ("DOS open without an SMB "
1845 return NT_STATUS_INTERNAL_ERROR;
1848 /* Use the client requested access mask here,
1849 * not the one we open with. */
1850 status = fcb_or_dos_open(req,
1861 if (NT_STATUS_IS_OK(status)) {
1864 *pinfo = FILE_WAS_OPENED;
1866 return NT_STATUS_OK;
1871 * This next line is a subtlety we need for
1872 * MS-Access. If a file open will fail due to share
1873 * permissions and also for security (access) reasons,
1874 * we need to return the access failed error, not the
1875 * share error. We can't open the file due to kernel
1876 * oplock deadlock (it's possible we failed above on
1877 * the open_mode_check()) so use a userspace check.
1880 if (flags & O_RDWR) {
1881 can_access_mask = FILE_READ_DATA|FILE_WRITE_DATA;
1882 } else if (flags & O_WRONLY) {
1883 can_access_mask = FILE_WRITE_DATA;
1885 can_access_mask = FILE_READ_DATA;
1888 if (((can_access_mask & FILE_WRITE_DATA) &&
1889 !CAN_WRITE(conn)) ||
1890 !can_access_file_data(conn, smb_fname,
1896 * If we're returning a share violation, ensure we
1897 * cope with the braindead 1 second delay.
1900 if (!(oplock_request & INTERNAL_OPEN_ONLY) &&
1901 lp_defer_sharing_violations()) {
1902 struct timeval timeout;
1903 struct deferred_open_record state;
1906 /* this is a hack to speed up torture tests
1908 timeout_usecs = lp_parm_int(SNUM(conn),
1909 "smbd","sharedelay",
1910 SHARING_VIOLATION_USEC_WAIT);
1912 /* This is a relative time, added to the absolute
1913 request_time value to get the absolute timeout time.
1914 Note that if this is the second or greater time we enter
1915 this codepath for this particular request mid then
1916 request_time is left as the absolute time of the *first*
1917 time this request mid was processed. This is what allows
1918 the request to eventually time out. */
1920 timeout = timeval_set(0, timeout_usecs);
1922 /* Nothing actually uses state.delayed_for_oplocks
1923 but it's handy to differentiate in debug messages
1924 between a 30 second delay due to oplock break, and
1925 a 1 second delay for share mode conflicts. */
1927 state.delayed_for_oplocks = False;
1931 && !request_timed_out(request_time,
1933 defer_open(lck, request_time, timeout,
1941 * We have detected a sharing violation here
1942 * so return the correct error code
1944 status = NT_STATUS_SHARING_VIOLATION;
1946 status = NT_STATUS_ACCESS_DENIED;
1952 * We exit this block with the share entry *locked*.....
1956 SMB_ASSERT(!file_existed || (lck != NULL));
1959 * Ensure we pay attention to default ACLs on directories if required.
1962 if ((flags2 & O_CREAT) && lp_inherit_acls(SNUM(conn)) &&
1963 (def_acl = directory_has_default_acl(conn, parent_dir))) {
1967 DEBUG(4,("calling open_file with flags=0x%X flags2=0x%X mode=0%o, "
1968 "access_mask = 0x%x, open_access_mask = 0x%x\n",
1969 (unsigned int)flags, (unsigned int)flags2,
1970 (unsigned int)unx_mode, (unsigned int)access_mask,
1971 (unsigned int)open_access_mask));
1974 * open_file strips any O_TRUNC flags itself.
1977 fsp_open = open_file(fsp, conn, req, parent_dir, smb_fname,
1978 flags|flags2, unx_mode, access_mask,
1981 if (!NT_STATUS_IS_OK(fsp_open)) {
1988 if (!file_existed) {
1989 struct timespec old_write_time = smb_fname->st.st_ex_mtime;
1991 * Deal with the race condition where two smbd's detect the
1992 * file doesn't exist and do the create at the same time. One
1993 * of them will win and set a share mode, the other (ie. this
1994 * one) should check if the requested share mode for this
1995 * create is allowed.
1999 * Now the file exists and fsp is successfully opened,
2000 * fsp->dev and fsp->inode are valid and should replace the
2001 * dev=0,inode=0 from a non existent file. Spotted by
2002 * Nadav Danieli <nadavd@exanet.com>. JRA.
2007 lck = get_share_mode_lock(talloc_tos(), id,
2009 fname, &old_write_time);
2012 DEBUG(0, ("open_file_ntcreate: Could not get share "
2013 "mode lock for %s\n",
2014 smb_fname_str_dbg(smb_fname)));
2016 return NT_STATUS_SHARING_VIOLATION;
2019 /* First pass - send break only on batch oplocks. */
2021 && delay_for_oplocks(lck, fsp, req->mid, 1,
2023 schedule_defer_open(lck, request_time, req);
2026 return NT_STATUS_SHARING_VIOLATION;
2029 status = open_mode_check(conn, lck, access_mask, share_access,
2030 create_options, &file_existed);
2032 if (NT_STATUS_IS_OK(status)) {
2033 /* We might be going to allow this open. Check oplock
2035 /* Second pass - send break for both batch or
2036 * exclusive oplocks. */
2038 && delay_for_oplocks(lck, fsp, req->mid, 2,
2040 schedule_defer_open(lck, request_time, req);
2043 return NT_STATUS_SHARING_VIOLATION;
2047 if (!NT_STATUS_IS_OK(status)) {
2048 struct deferred_open_record state;
2052 state.delayed_for_oplocks = False;
2055 /* Do it all over again immediately. In the second
2056 * round we will find that the file existed and handle
2057 * the DELETE_PENDING and FCB cases correctly. No need
2058 * to duplicate the code here. Essentially this is a
2059 * "goto top of this function", but don't tell
2063 defer_open(lck, request_time, timeval_zero(),
2071 * We exit this block with the share entry *locked*.....
2076 SMB_ASSERT(lck != NULL);
2078 /* Delete streams if create_disposition requires it */
2079 if (file_existed && clear_ads &&
2080 !is_ntfs_stream_smb_fname(smb_fname)) {
2081 status = delete_all_streams(conn, smb_fname->base_name);
2082 if (!NT_STATUS_IS_OK(status)) {
2089 /* note that we ignore failure for the following. It is
2090 basically a hack for NFS, and NFS will never set one of
2091 these only read them. Nobody but Samba can ever set a deny
2092 mode and we have already checked our more authoritative
2093 locking database for permission to set this deny mode. If
2094 the kernel refuses the operations then the kernel is wrong.
2095 note that GPFS supports it as well - jmcd */
2097 if (fsp->fh->fd != -1) {
2098 ret_flock = SMB_VFS_KERNEL_FLOCK(fsp, share_access);
2099 if(ret_flock == -1 ){
2104 return NT_STATUS_SHARING_VIOLATION;
2109 * At this point onwards, we can guarentee that the share entry
2110 * is locked, whether we created the file or not, and that the
2111 * deny mode is compatible with all current opens.
2115 * If requested, truncate the file.
2118 if (flags2&O_TRUNC) {
2120 * We are modifing the file after open - update the stat
2123 if ((SMB_VFS_FTRUNCATE(fsp, 0) == -1) ||
2124 (SMB_VFS_FSTAT(fsp, &smb_fname->st)==-1)) {
2125 status = map_nt_error_from_unix(errno);
2132 /* Record the options we were opened with. */
2133 fsp->share_access = share_access;
2134 fsp->fh->private_options = create_options;
2136 * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
2138 fsp->access_mask = access_mask | FILE_READ_ATTRIBUTES;
2141 /* stat opens on existing files don't get oplocks. */
2142 if (is_stat_open(open_access_mask)) {
2143 fsp->oplock_type = NO_OPLOCK;
2146 if (!(flags2 & O_TRUNC)) {
2147 info = FILE_WAS_OPENED;
2149 info = FILE_WAS_OVERWRITTEN;
2152 info = FILE_WAS_CREATED;
2160 * Setup the oplock info in both the shared memory and
2164 if (!set_file_oplock(fsp, fsp->oplock_type)) {
2165 /* Could not get the kernel oplock */
2166 fsp->oplock_type = NO_OPLOCK;
2169 if (info == FILE_WAS_OVERWRITTEN || info == FILE_WAS_CREATED || info == FILE_WAS_SUPERSEDED) {
2170 new_file_created = True;
2173 set_share_mode(lck, fsp, conn->server_info->utok.uid, 0,
2176 /* Handle strange delete on close create semantics. */
2177 if (create_options & FILE_DELETE_ON_CLOSE) {
2179 status = can_set_delete_on_close(fsp, True, new_dos_attributes);
2181 if (!NT_STATUS_IS_OK(status)) {
2182 /* Remember to delete the mode we just added. */
2183 del_share_mode(lck, fsp);
2188 /* Note that here we set the *inital* delete on close flag,
2189 not the regular one. The magic gets handled in close. */
2190 fsp->initial_delete_on_close = True;
2193 if (new_file_created) {
2194 /* Files should be initially set as archive */
2195 if (lp_map_archive(SNUM(conn)) ||
2196 lp_store_dos_attributes(SNUM(conn))) {
2198 if (file_set_dosmode(conn, smb_fname,
2199 new_dos_attributes | aARCH,
2200 parent_dir, true) == 0) {
2201 unx_mode = smb_fname->st.st_ex_mode;
2208 * Take care of inherited ACLs on created files - if default ACL not
2212 if (!posix_open && !file_existed && !def_acl) {
2214 int saved_errno = errno; /* We might get ENOSYS in the next
2217 if (SMB_VFS_FCHMOD_ACL(fsp, unx_mode) == -1 &&
2219 errno = saved_errno; /* Ignore ENOSYS */
2222 } else if (new_unx_mode) {
2226 /* Attributes need changing. File already existed. */
2229 int saved_errno = errno; /* We might get ENOSYS in the
2231 ret = SMB_VFS_FCHMOD_ACL(fsp, new_unx_mode);
2233 if (ret == -1 && errno == ENOSYS) {
2234 errno = saved_errno; /* Ignore ENOSYS */
2236 DEBUG(5, ("open_file_ntcreate: reset "
2237 "attributes of file %s to 0%o\n",
2238 smb_fname_str_dbg(smb_fname),
2239 (unsigned int)new_unx_mode));
2240 ret = 0; /* Don't do the fchmod below. */
2245 (SMB_VFS_FCHMOD(fsp, new_unx_mode) == -1))
2246 DEBUG(5, ("open_file_ntcreate: failed to reset "
2247 "attributes of file %s to 0%o\n",
2248 smb_fname_str_dbg(smb_fname),
2249 (unsigned int)new_unx_mode));
2252 /* If this is a successful open, we must remove any deferred open
2255 del_deferred_open_entry(lck, req->mid);
2259 return NT_STATUS_OK;
2263 /****************************************************************************
2264 Open a file for for write to ensure that we can fchmod it.
2265 ****************************************************************************/
2267 NTSTATUS open_file_fchmod(struct smb_request *req, connection_struct *conn,
2269 SMB_STRUCT_STAT *psbuf, files_struct **result)
2271 struct smb_filename *smb_fname = NULL;
2272 files_struct *fsp = NULL;
2275 if (!VALID_STAT(*psbuf)) {
2276 return NT_STATUS_INVALID_PARAMETER;
2279 status = file_new(req, conn, &fsp);
2280 if(!NT_STATUS_IS_OK(status)) {
2284 status = create_synthetic_smb_fname_split(talloc_tos(), fname, psbuf,
2286 if (!NT_STATUS_IS_OK(status)) {
2290 status = SMB_VFS_CREATE_FILE(
2293 0, /* root_dir_fid */
2294 smb_fname, /* fname */
2295 FILE_WRITE_DATA, /* access_mask */
2296 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
2298 FILE_OPEN, /* create_disposition*/
2299 0, /* create_options */
2300 0, /* file_attributes */
2301 0, /* oplock_request */
2302 0, /* allocation_size */
2308 *psbuf = smb_fname->st;
2309 TALLOC_FREE(smb_fname);
2312 * This is not a user visible file open.
2313 * Don't set a share mode.
2316 if (!NT_STATUS_IS_OK(status)) {
2317 file_free(req, fsp);
2322 return NT_STATUS_OK;
2325 /****************************************************************************
2326 Close the fchmod file fd - ensure no locks are lost.
2327 ****************************************************************************/
2329 NTSTATUS close_file_fchmod(struct smb_request *req, files_struct *fsp)
2331 NTSTATUS status = fd_close(fsp);
2332 file_free(req, fsp);
2336 static NTSTATUS mkdir_internal(connection_struct *conn,
2337 struct smb_filename *smb_dname,
2338 uint32 file_attributes)
2343 bool posix_open = false;
2345 if(!CAN_WRITE(conn)) {
2346 DEBUG(5,("mkdir_internal: failing create on read-only share "
2347 "%s\n", lp_servicename(SNUM(conn))));
2348 return NT_STATUS_ACCESS_DENIED;
2351 status = check_name(conn, smb_dname->base_name);
2352 if (!NT_STATUS_IS_OK(status)) {
2356 if (!parent_dirname(talloc_tos(), smb_dname->base_name, &parent_dir,
2358 return NT_STATUS_NO_MEMORY;
2361 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
2363 mode = (mode_t)(file_attributes & ~FILE_FLAG_POSIX_SEMANTICS);
2365 mode = unix_mode(conn, aDIR, smb_dname, parent_dir);
2368 if (SMB_VFS_MKDIR(conn, smb_dname->base_name, mode) != 0) {
2369 return map_nt_error_from_unix(errno);
2372 /* Ensure we're checking for a symlink here.... */
2373 /* We don't want to get caught by a symlink racer. */
2375 if (SMB_VFS_LSTAT(conn, smb_dname) == -1) {
2376 DEBUG(2, ("Could not stat directory '%s' just created: %s\n",
2377 smb_fname_str_dbg(smb_dname), strerror(errno)));
2378 return map_nt_error_from_unix(errno);
2381 if (!S_ISDIR(smb_dname->st.st_ex_mode)) {
2382 DEBUG(0, ("Directory just '%s' created is not a directory\n",
2383 smb_fname_str_dbg(smb_dname)));
2384 return NT_STATUS_ACCESS_DENIED;
2387 if (lp_store_dos_attributes(SNUM(conn))) {
2389 file_set_dosmode(conn, smb_dname,
2390 file_attributes | aDIR,
2395 if (lp_inherit_perms(SNUM(conn))) {
2396 inherit_access_posix_acl(conn, parent_dir,
2397 smb_dname->base_name, mode);
2400 if (!(file_attributes & FILE_FLAG_POSIX_SEMANTICS)) {
2402 * Check if high bits should have been set,
2403 * then (if bits are missing): add them.
2404 * Consider bits automagically set by UNIX, i.e. SGID bit from parent
2407 if ((mode & ~(S_IRWXU|S_IRWXG|S_IRWXO)) &&
2408 (mode & ~smb_dname->st.st_ex_mode)) {
2409 SMB_VFS_CHMOD(conn, smb_dname->base_name,
2410 (smb_dname->st.st_ex_mode |
2411 (mode & ~smb_dname->st.st_ex_mode)));
2415 /* Change the owner if required. */
2416 if (lp_inherit_owner(SNUM(conn))) {
2417 change_dir_owner_to_parent(conn, parent_dir,
2418 smb_dname->base_name,
2422 notify_fname(conn, NOTIFY_ACTION_ADDED, FILE_NOTIFY_CHANGE_DIR_NAME,
2423 smb_dname->base_name);
2425 return NT_STATUS_OK;
2428 /****************************************************************************
2429 Open a directory from an NT SMB call.
2430 ****************************************************************************/
2432 static NTSTATUS open_directory(connection_struct *conn,
2433 struct smb_request *req,
2434 struct smb_filename *smb_dname,
2436 uint32 share_access,
2437 uint32 create_disposition,
2438 uint32 create_options,
2439 uint32 file_attributes,
2441 files_struct **result)
2443 files_struct *fsp = NULL;
2444 bool dir_existed = VALID_STAT(smb_dname->st) ? True : False;
2445 struct share_mode_lock *lck = NULL;
2447 struct timespec mtimespec;
2450 SMB_ASSERT(!is_ntfs_stream_smb_fname(smb_dname));
2452 DEBUG(5,("open_directory: opening directory %s, access_mask = 0x%x, "
2453 "share_access = 0x%x create_options = 0x%x, "
2454 "create_disposition = 0x%x, file_attributes = 0x%x\n",
2455 smb_fname_str_dbg(smb_dname),
2456 (unsigned int)access_mask,
2457 (unsigned int)share_access,
2458 (unsigned int)create_options,
2459 (unsigned int)create_disposition,
2460 (unsigned int)file_attributes));
2462 if (!(file_attributes & FILE_FLAG_POSIX_SEMANTICS) &&
2463 (conn->fs_capabilities & FILE_NAMED_STREAMS) &&
2464 is_ntfs_stream_smb_fname(smb_dname)) {
2465 DEBUG(2, ("open_directory: %s is a stream name!\n",
2466 smb_fname_str_dbg(smb_dname)));
2467 return NT_STATUS_NOT_A_DIRECTORY;
2470 status = calculate_access_mask(conn, smb_dname, dir_existed,
2471 access_mask, &access_mask);
2472 if (!NT_STATUS_IS_OK(status)) {
2473 DEBUG(10, ("open_directory: calculate_access_mask "
2474 "on file %s returned %s\n",
2475 smb_fname_str_dbg(smb_dname),
2476 nt_errstr(status)));
2480 /* We need to support SeSecurityPrivilege for this. */
2481 if (access_mask & SEC_FLAG_SYSTEM_SECURITY) {
2482 DEBUG(10, ("open_directory: open on %s "
2483 "failed - SEC_FLAG_SYSTEM_SECURITY denied.\n",
2484 smb_fname_str_dbg(smb_dname)));
2485 return NT_STATUS_PRIVILEGE_NOT_HELD;
2488 switch( create_disposition ) {
2491 info = FILE_WAS_OPENED;
2494 * We want to follow symlinks here.
2497 if (SMB_VFS_STAT(conn, smb_dname) != 0) {
2498 return map_nt_error_from_unix(errno);
2505 /* If directory exists error. If directory doesn't
2508 status = mkdir_internal(conn, smb_dname,
2511 if (!NT_STATUS_IS_OK(status)) {
2512 DEBUG(2, ("open_directory: unable to create "
2513 "%s. Error was %s\n",
2514 smb_fname_str_dbg(smb_dname),
2515 nt_errstr(status)));
2519 info = FILE_WAS_CREATED;
2524 * If directory exists open. If directory doesn't
2528 status = mkdir_internal(conn, smb_dname,
2531 if (NT_STATUS_IS_OK(status)) {
2532 info = FILE_WAS_CREATED;
2535 if (NT_STATUS_EQUAL(status,
2536 NT_STATUS_OBJECT_NAME_COLLISION)) {
2537 info = FILE_WAS_OPENED;
2538 status = NT_STATUS_OK;
2543 case FILE_SUPERSEDE:
2544 case FILE_OVERWRITE:
2545 case FILE_OVERWRITE_IF:
2547 DEBUG(5,("open_directory: invalid create_disposition "
2548 "0x%x for directory %s\n",
2549 (unsigned int)create_disposition,
2550 smb_fname_str_dbg(smb_dname)));
2551 return NT_STATUS_INVALID_PARAMETER;
2554 if(!S_ISDIR(smb_dname->st.st_ex_mode)) {
2555 DEBUG(5,("open_directory: %s is not a directory !\n",
2556 smb_fname_str_dbg(smb_dname)));
2557 return NT_STATUS_NOT_A_DIRECTORY;
2560 if (info == FILE_WAS_OPENED) {
2561 uint32_t access_granted = 0;
2562 status = check_open_rights(conn, smb_dname, access_mask,
2565 /* Were we trying to do a directory open
2566 * for delete and didn't get DELETE
2567 * access (only) ? Check if the
2568 * directory allows DELETE_CHILD.
2570 * http://blogs.msdn.com/oldnewthing/archive/2004/06/04/148426.aspx
2573 if ((NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED) &&
2574 (access_mask & DELETE_ACCESS) &&
2575 (access_granted == DELETE_ACCESS) &&
2576 can_delete_file_in_directory(conn, smb_dname))) {
2577 DEBUG(10,("open_directory: overrode ACCESS_DENIED "
2578 "on directory %s\n",
2579 smb_fname_str_dbg(smb_dname)));
2580 status = NT_STATUS_OK;
2583 if (!NT_STATUS_IS_OK(status)) {
2584 DEBUG(10, ("open_directory: check_open_rights on "
2585 "file %s failed with %s\n",
2586 smb_fname_str_dbg(smb_dname),
2587 nt_errstr(status)));
2592 status = file_new(req, conn, &fsp);
2593 if(!NT_STATUS_IS_OK(status)) {
2598 * Setup the files_struct for it.
2601 fsp->mode = smb_dname->st.st_ex_mode;
2602 fsp->file_id = vfs_file_id_from_sbuf(conn, &smb_dname->st);
2603 fsp->vuid = req ? req->vuid : UID_FIELD_INVALID;
2604 fsp->file_pid = req ? req->smbpid : 0;
2605 fsp->can_lock = False;
2606 fsp->can_read = False;
2607 fsp->can_write = False;
2609 fsp->share_access = share_access;
2610 fsp->fh->private_options = create_options;
2612 * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
2614 fsp->access_mask = access_mask | FILE_READ_ATTRIBUTES;
2615 fsp->print_file = False;
2616 fsp->modified = False;
2617 fsp->oplock_type = NO_OPLOCK;
2618 fsp->sent_oplock_break = NO_BREAK_SENT;
2619 fsp->is_directory = True;
2620 fsp->posix_open = (file_attributes & FILE_FLAG_POSIX_SEMANTICS) ? True : False;
2622 string_set(&fsp->fsp_name, smb_dname->base_name);
2624 mtimespec = smb_dname->st.st_ex_mtime;
2626 lck = get_share_mode_lock(talloc_tos(), fsp->file_id,
2627 conn->connectpath, smb_dname->base_name,
2631 DEBUG(0, ("open_directory: Could not get share mode lock for "
2632 "%s\n", smb_fname_str_dbg(smb_dname)));
2633 file_free(req, fsp);
2634 return NT_STATUS_SHARING_VIOLATION;
2637 status = open_mode_check(conn, lck, access_mask, share_access,
2638 create_options, &dir_existed);
2640 if (!NT_STATUS_IS_OK(status)) {
2642 file_free(req, fsp);
2646 set_share_mode(lck, fsp, conn->server_info->utok.uid, 0, NO_OPLOCK);
2648 /* For directories the delete on close bit at open time seems
2649 always to be honored on close... See test 19 in Samba4 BASE-DELETE. */
2650 if (create_options & FILE_DELETE_ON_CLOSE) {
2651 status = can_set_delete_on_close(fsp, True, 0);
2652 if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status, NT_STATUS_DIRECTORY_NOT_EMPTY)) {
2654 file_free(req, fsp);
2658 if (NT_STATUS_IS_OK(status)) {
2659 /* Note that here we set the *inital* delete on close flag,
2660 not the regular one. The magic gets handled in close. */
2661 fsp->initial_delete_on_close = True;
2672 return NT_STATUS_OK;
2675 NTSTATUS create_directory(connection_struct *conn, struct smb_request *req,
2676 struct smb_filename *smb_dname)
2681 status = SMB_VFS_CREATE_FILE(
2684 0, /* root_dir_fid */
2685 smb_dname, /* fname */
2686 FILE_READ_ATTRIBUTES, /* access_mask */
2687 FILE_SHARE_NONE, /* share_access */
2688 FILE_CREATE, /* create_disposition*/
2689 FILE_DIRECTORY_FILE, /* create_options */
2690 FILE_ATTRIBUTE_DIRECTORY, /* file_attributes */
2691 0, /* oplock_request */
2692 0, /* allocation_size */
2698 if (NT_STATUS_IS_OK(status)) {
2699 close_file(req, fsp, NORMAL_CLOSE);
2705 /****************************************************************************
2706 Receive notification that one of our open files has been renamed by another
2708 ****************************************************************************/
2710 void msg_file_was_renamed(struct messaging_context *msg,
2713 struct server_id server_id,
2717 char *frm = (char *)data->data;
2719 const char *sharepath;
2720 const char *newname;
2723 if (data->data == NULL
2724 || data->length < MSG_FILE_RENAMED_MIN_SIZE + 2) {
2725 DEBUG(0, ("msg_file_was_renamed: Got invalid msg len %d\n",
2726 (int)data->length));
2730 /* Unpack the message. */
2731 pull_file_id_24(frm, &id);
2732 sharepath = &frm[24];
2733 newname = sharepath + strlen(sharepath) + 1;
2734 sp_len = strlen(sharepath);
2736 DEBUG(10,("msg_file_was_renamed: Got rename message for sharepath %s, new name %s, "
2738 sharepath, newname, file_id_string_tos(&id)));
2740 for(fsp = file_find_di_first(id); fsp; fsp = file_find_di_next(fsp)) {
2741 if (memcmp(fsp->conn->connectpath, sharepath, sp_len) == 0) {
2742 DEBUG(10,("msg_file_was_renamed: renaming file fnum %d from %s -> %s\n",
2743 fsp->fnum, fsp->fsp_name, newname ));
2744 string_set(&fsp->fsp_name, newname);
2747 /* Now we have the complete path we can work out if this is
2748 actually within this share and adjust newname accordingly. */
2749 DEBUG(10,("msg_file_was_renamed: share mismatch (sharepath %s "
2750 "not sharepath %s) "
2751 "fnum %d from %s -> %s\n",
2752 fsp->conn->connectpath,
2761 struct case_semantics_state {
2762 connection_struct *conn;
2763 bool case_sensitive;
2765 bool short_case_preserve;
2768 /****************************************************************************
2769 Restore case semantics.
2770 ****************************************************************************/
2771 static int restore_case_semantics(struct case_semantics_state *state)
2773 state->conn->case_sensitive = state->case_sensitive;
2774 state->conn->case_preserve = state->case_preserve;
2775 state->conn->short_case_preserve = state->short_case_preserve;
2779 /****************************************************************************
2780 Save case semantics.
2781 ****************************************************************************/
2782 struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
2783 connection_struct *conn)
2785 struct case_semantics_state *result;
2787 if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
2788 DEBUG(0, ("talloc failed\n"));
2792 result->conn = conn;
2793 result->case_sensitive = conn->case_sensitive;
2794 result->case_preserve = conn->case_preserve;
2795 result->short_case_preserve = conn->short_case_preserve;
2798 conn->case_sensitive = True;
2799 conn->case_preserve = True;
2800 conn->short_case_preserve = True;
2802 talloc_set_destructor(result, restore_case_semantics);
2808 * If a main file is opened for delete, all streams need to be checked for
2809 * !FILE_SHARE_DELETE. Do this by opening with DELETE_ACCESS.
2810 * If that works, delete them all by setting the delete on close and close.
2813 NTSTATUS open_streams_for_delete(connection_struct *conn,
2816 struct stream_struct *stream_info;
2817 files_struct **streams;
2819 unsigned int num_streams;
2820 TALLOC_CTX *frame = talloc_stackframe();
2823 status = SMB_VFS_STREAMINFO(conn, NULL, fname, talloc_tos(),
2824 &num_streams, &stream_info);
2826 if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_IMPLEMENTED)
2827 || NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
2828 DEBUG(10, ("no streams around\n"));
2830 return NT_STATUS_OK;
2833 if (!NT_STATUS_IS_OK(status)) {
2834 DEBUG(10, ("SMB_VFS_STREAMINFO failed: %s\n",
2835 nt_errstr(status)));
2839 DEBUG(10, ("open_streams_for_delete found %d streams\n",
2842 if (num_streams == 0) {
2844 return NT_STATUS_OK;
2847 streams = TALLOC_ARRAY(talloc_tos(), files_struct *, num_streams);
2848 if (streams == NULL) {
2849 DEBUG(0, ("talloc failed\n"));
2850 status = NT_STATUS_NO_MEMORY;
2854 for (i=0; i<num_streams; i++) {
2855 struct smb_filename *smb_fname = NULL;
2857 if (strequal(stream_info[i].name, "::$DATA")) {
2862 status = create_synthetic_smb_fname(talloc_tos(), fname,
2863 stream_info[i].name,
2865 if (!NT_STATUS_IS_OK(status)) {
2869 if (SMB_VFS_STAT(conn, smb_fname) == -1) {
2870 DEBUG(10, ("Unable to stat stream: %s\n",
2871 smb_fname_str_dbg(smb_fname)));
2874 status = SMB_VFS_CREATE_FILE(
2877 0, /* root_dir_fid */
2878 smb_fname, /* fname */
2879 DELETE_ACCESS, /* access_mask */
2880 (FILE_SHARE_READ | /* share_access */
2881 FILE_SHARE_WRITE | FILE_SHARE_DELETE),
2882 FILE_OPEN, /* create_disposition*/
2883 NTCREATEX_OPTIONS_PRIVATE_STREAM_DELETE, /* create_options */
2884 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
2885 0, /* oplock_request */
2886 0, /* allocation_size */
2889 &streams[i], /* result */
2892 if (!NT_STATUS_IS_OK(status)) {
2893 DEBUG(10, ("Could not open stream %s: %s\n",
2894 smb_fname_str_dbg(smb_fname),
2895 nt_errstr(status)));
2897 TALLOC_FREE(smb_fname);
2900 TALLOC_FREE(smb_fname);
2904 * don't touch the variable "status" beyond this point :-)
2907 for (i -= 1 ; i >= 0; i--) {
2908 if (streams[i] == NULL) {
2912 DEBUG(10, ("Closing stream # %d, %s\n", i,
2913 streams[i]->fsp_name));
2914 close_file(NULL, streams[i], NORMAL_CLOSE);
2923 * Wrapper around open_file_ntcreate and open_directory
2926 static NTSTATUS create_file_unixpath(connection_struct *conn,
2927 struct smb_request *req,
2928 struct smb_filename *smb_fname,
2929 uint32_t access_mask,
2930 uint32_t share_access,
2931 uint32_t create_disposition,
2932 uint32_t create_options,
2933 uint32_t file_attributes,
2934 uint32_t oplock_request,
2935 uint64_t allocation_size,
2936 struct security_descriptor *sd,
2937 struct ea_list *ea_list,
2939 files_struct **result,
2942 int info = FILE_WAS_OPENED;
2943 files_struct *base_fsp = NULL;
2944 files_struct *fsp = NULL;
2947 DEBUG(10,("create_file_unixpath: access_mask = 0x%x "
2948 "file_attributes = 0x%x, share_access = 0x%x, "
2949 "create_disposition = 0x%x create_options = 0x%x "
2950 "oplock_request = 0x%x ea_list = 0x%p, sd = 0x%p, "
2952 (unsigned int)access_mask,
2953 (unsigned int)file_attributes,
2954 (unsigned int)share_access,
2955 (unsigned int)create_disposition,
2956 (unsigned int)create_options,
2957 (unsigned int)oplock_request,
2958 ea_list, sd, smb_fname_str_dbg(smb_fname)));
2960 if (create_options & FILE_OPEN_BY_FILE_ID) {
2961 status = NT_STATUS_NOT_SUPPORTED;
2965 if (create_options & NTCREATEX_OPTIONS_INVALID_PARAM_MASK) {
2966 status = NT_STATUS_INVALID_PARAMETER;
2971 oplock_request |= INTERNAL_OPEN_ONLY;
2974 if ((conn->fs_capabilities & FILE_NAMED_STREAMS)
2975 && (access_mask & DELETE_ACCESS)
2976 && !is_ntfs_stream_smb_fname(smb_fname)) {
2978 * We can't open a file with DELETE access if any of the
2979 * streams is open without FILE_SHARE_DELETE
2981 status = open_streams_for_delete(conn, smb_fname->base_name);
2983 if (!NT_STATUS_IS_OK(status)) {
2988 /* This is the correct thing to do (check every time) but can_delete
2989 * is expensive (it may have to read the parent directory
2990 * permissions). So for now we're not doing it unless we have a strong
2991 * hint the client is really going to delete this file. If the client
2992 * is forcing FILE_CREATE let the filesystem take care of the
2995 /* Setting FILE_SHARE_DELETE is the hint. */
2997 if (lp_acl_check_permissions(SNUM(conn))
2998 && (create_disposition != FILE_CREATE)
2999 && (share_access & FILE_SHARE_DELETE)
3000 && (access_mask & DELETE_ACCESS)
3001 && (!(can_delete_file_in_directory(conn, smb_fname) ||
3002 can_access_file_acl(conn, smb_fname, DELETE_ACCESS)))) {
3003 status = NT_STATUS_ACCESS_DENIED;
3004 DEBUG(10,("create_file_unixpath: open file %s "
3005 "for delete ACCESS_DENIED\n",
3006 smb_fname_str_dbg(smb_fname)));
3011 /* We need to support SeSecurityPrivilege for this. */
3012 if ((access_mask & SEC_FLAG_SYSTEM_SECURITY) &&
3013 !user_has_privileges(current_user.nt_user_token,
3015 status = NT_STATUS_PRIVILEGE_NOT_HELD;
3019 /* We need to support SeSecurityPrivilege for this. */
3020 if (access_mask & SEC_FLAG_SYSTEM_SECURITY) {
3021 status = NT_STATUS_PRIVILEGE_NOT_HELD;
3024 /* Don't allow a SACL set from an NTtrans create until we
3025 * support SeSecurityPrivilege. */
3026 if (!VALID_STAT(smb_fname->st) &&
3027 lp_nt_acl_support(SNUM(conn)) &&
3028 sd && (sd->sacl != NULL)) {
3029 status = NT_STATUS_PRIVILEGE_NOT_HELD;
3034 if ((conn->fs_capabilities & FILE_NAMED_STREAMS)
3035 && is_ntfs_stream_smb_fname(smb_fname)
3036 && (!(create_options & NTCREATEX_OPTIONS_PRIVATE_STREAM_DELETE))) {
3037 uint32 base_create_disposition;
3038 struct smb_filename *smb_fname_base = NULL;
3040 if (create_options & FILE_DIRECTORY_FILE) {
3041 status = NT_STATUS_NOT_A_DIRECTORY;
3045 switch (create_disposition) {
3047 base_create_disposition = FILE_OPEN;
3050 base_create_disposition = FILE_OPEN_IF;
3054 /* Create an smb_filename with stream_name == NULL. */
3055 status = create_synthetic_smb_fname(talloc_tos(),
3056 smb_fname->base_name,
3059 if (!NT_STATUS_IS_OK(status)) {
3063 if (SMB_VFS_STAT(conn, smb_fname_base) == -1) {
3064 DEBUG(10, ("Unable to stat stream: %s\n",
3065 smb_fname_str_dbg(smb_fname_base)));
3068 /* Open the base file. */
3069 status = create_file_unixpath(conn, NULL, smb_fname_base, 0,
3072 | FILE_SHARE_DELETE,
3073 base_create_disposition,
3074 0, 0, 0, 0, NULL, NULL,
3076 TALLOC_FREE(smb_fname_base);
3078 if (!NT_STATUS_IS_OK(status)) {
3079 DEBUG(10, ("create_file_unixpath for base %s failed: "
3080 "%s\n", smb_fname->base_name,
3081 nt_errstr(status)));
3084 /* we don't need to low level fd */
3089 * If it's a request for a directory open, deal with it separately.
3092 if (create_options & FILE_DIRECTORY_FILE) {
3094 if (create_options & FILE_NON_DIRECTORY_FILE) {
3095 status = NT_STATUS_INVALID_PARAMETER;
3099 /* Can't open a temp directory. IFS kit test. */
3100 if (!(file_attributes & FILE_FLAG_POSIX_SEMANTICS) &&
3101 (file_attributes & FILE_ATTRIBUTE_TEMPORARY)) {
3102 status = NT_STATUS_INVALID_PARAMETER;
3107 * We will get a create directory here if the Win32
3108 * app specified a security descriptor in the
3109 * CreateDirectory() call.
3113 status = open_directory(
3114 conn, req, smb_fname, access_mask, share_access,
3115 create_disposition, create_options, file_attributes,
3120 * Ordinary file case.
3123 status = file_new(req, conn, &fsp);
3124 if(!NT_STATUS_IS_OK(status)) {
3129 * We're opening the stream element of a base_fsp
3130 * we already opened. Set up the base_fsp pointer.
3133 fsp->base_fsp = base_fsp;
3136 status = open_file_ntcreate(conn,
3148 if(!NT_STATUS_IS_OK(status)) {
3149 file_free(req, fsp);
3153 if (NT_STATUS_EQUAL(status, NT_STATUS_FILE_IS_A_DIRECTORY)) {
3155 /* A stream open never opens a directory */
3158 status = NT_STATUS_FILE_IS_A_DIRECTORY;
3163 * Fail the open if it was explicitly a non-directory
3167 if (create_options & FILE_NON_DIRECTORY_FILE) {
3168 status = NT_STATUS_FILE_IS_A_DIRECTORY;
3173 status = open_directory(
3174 conn, req, smb_fname, access_mask,
3175 share_access, create_disposition,
3176 create_options, file_attributes,
3181 if (!NT_STATUS_IS_OK(status)) {
3185 fsp->base_fsp = base_fsp;
3188 * According to the MS documentation, the only time the security
3189 * descriptor is applied to the opened file is iff we *created* the
3190 * file; an existing file stays the same.
3192 * Also, it seems (from observation) that you can open the file with
3193 * any access mask but you can still write the sd. We need to override
3194 * the granted access before we call set_sd
3195 * Patch for bug #2242 from Tom Lackemann <cessnatomny@yahoo.com>.
3198 if ((sd != NULL) && (info == FILE_WAS_CREATED)
3199 && lp_nt_acl_support(SNUM(conn))) {
3201 uint32_t sec_info_sent;
3202 uint32_t saved_access_mask = fsp->access_mask;
3204 sec_info_sent = get_sec_info(sd);
3206 fsp->access_mask = FILE_GENERIC_ALL;
3208 /* Convert all the generic bits. */
3209 security_acl_map_generic(sd->dacl, &file_generic_mapping);
3210 security_acl_map_generic(sd->sacl, &file_generic_mapping);
3212 if (sec_info_sent & (OWNER_SECURITY_INFORMATION|
3213 GROUP_SECURITY_INFORMATION|
3214 DACL_SECURITY_INFORMATION|
3215 SACL_SECURITY_INFORMATION)) {
3216 status = SMB_VFS_FSET_NT_ACL(fsp, sec_info_sent, sd);
3219 fsp->access_mask = saved_access_mask;
3221 if (!NT_STATUS_IS_OK(status)) {
3226 if ((ea_list != NULL) &&
3227 ((info == FILE_WAS_CREATED) || (info == FILE_WAS_OVERWRITTEN))) {
3228 status = set_ea(conn, fsp, smb_fname, ea_list);
3229 if (!NT_STATUS_IS_OK(status)) {
3234 if (!fsp->is_directory && S_ISDIR(smb_fname->st.st_ex_mode)) {
3235 status = NT_STATUS_ACCESS_DENIED;
3239 /* Save the requested allocation size. */
3240 if ((info == FILE_WAS_CREATED) || (info == FILE_WAS_OVERWRITTEN)) {
3242 && (allocation_size > smb_fname->st.st_ex_size)) {
3243 fsp->initial_allocation_size = smb_roundup(
3244 fsp->conn, allocation_size);
3245 if (fsp->is_directory) {
3246 /* Can't set allocation size on a directory. */
3247 status = NT_STATUS_ACCESS_DENIED;
3250 if (vfs_allocate_file_space(
3251 fsp, fsp->initial_allocation_size) == -1) {
3252 status = NT_STATUS_DISK_FULL;
3256 fsp->initial_allocation_size = smb_roundup(
3257 fsp->conn, (uint64_t)smb_fname->st.st_ex_size);
3261 DEBUG(10, ("create_file_unixpath: info=%d\n", info));
3264 if (pinfo != NULL) {
3267 if ((fsp->fh != NULL) && (fsp->fh->fd != -1)) {
3268 SMB_VFS_FSTAT(fsp, &smb_fname->st);
3270 return NT_STATUS_OK;
3273 DEBUG(10, ("create_file_unixpath: %s\n", nt_errstr(status)));
3276 if (base_fsp && fsp->base_fsp == base_fsp) {
3278 * The close_file below will close
3283 close_file(req, fsp, ERROR_CLOSE);
3286 if (base_fsp != NULL) {
3287 close_file(req, base_fsp, ERROR_CLOSE);
3294 * Calculate the full path name given a relative fid.
3296 NTSTATUS get_relative_fid_filename(connection_struct *conn,
3297 struct smb_request *req,
3298 uint16_t root_dir_fid,
3299 struct smb_filename *smb_fname)
3301 files_struct *dir_fsp;
3302 char *parent_fname = NULL;
3303 char *new_base_name = NULL;
3306 if (root_dir_fid == 0 || !smb_fname) {
3307 status = NT_STATUS_INTERNAL_ERROR;
3311 dir_fsp = file_fsp(req, root_dir_fid);
3313 if (dir_fsp == NULL) {
3314 status = NT_STATUS_INVALID_HANDLE;
3318 if (!dir_fsp->is_directory) {
3321 * Check to see if this is a mac fork of some kind.
3324 if ((conn->fs_capabilities & FILE_NAMED_STREAMS) &&
3325 is_ntfs_stream_smb_fname(smb_fname)) {
3326 status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
3331 we need to handle the case when we get a
3332 relative open relative to a file and the
3333 pathname is blank - this is a reopen!
3334 (hint from demyn plantenberg)
3337 status = NT_STATUS_INVALID_HANDLE;
3341 if (ISDOT(dir_fsp->fsp_name)) {
3343 * We're at the toplevel dir, the final file name
3344 * must not contain ./, as this is filtered out
3345 * normally by srvstr_get_path and unix_convert
3346 * explicitly rejects paths containing ./.
3348 parent_fname = talloc_strdup(talloc_tos(), "");
3349 if (parent_fname == NULL) {
3350 status = NT_STATUS_NO_MEMORY;
3354 size_t dir_name_len = strlen(dir_fsp->fsp_name);
3357 * Copy in the base directory name.
3360 parent_fname = TALLOC_ARRAY(talloc_tos(), char,
3362 if (parent_fname == NULL) {
3363 status = NT_STATUS_NO_MEMORY;
3366 memcpy(parent_fname, dir_fsp->fsp_name,
3370 * Ensure it ends in a '/'.
3371 * We used TALLOC_SIZE +2 to add space for the '/'.
3375 && (parent_fname[dir_name_len-1] != '\\')
3376 && (parent_fname[dir_name_len-1] != '/')) {
3377 parent_fname[dir_name_len] = '/';
3378 parent_fname[dir_name_len+1] = '\0';
3382 new_base_name = talloc_asprintf(smb_fname, "%s%s", parent_fname,
3383 smb_fname->base_name);
3384 if (new_base_name == NULL) {
3385 status = NT_STATUS_NO_MEMORY;
3389 TALLOC_FREE(smb_fname->base_name);
3390 smb_fname->base_name = new_base_name;
3391 status = NT_STATUS_OK;
3394 TALLOC_FREE(parent_fname);
3398 NTSTATUS create_file_default(connection_struct *conn,
3399 struct smb_request *req,
3400 uint16_t root_dir_fid,
3401 struct smb_filename *smb_fname,
3402 uint32_t access_mask,
3403 uint32_t share_access,
3404 uint32_t create_disposition,
3405 uint32_t create_options,
3406 uint32_t file_attributes,
3407 uint32_t oplock_request,
3408 uint64_t allocation_size,
3409 struct security_descriptor *sd,
3410 struct ea_list *ea_list,
3411 files_struct **result,
3414 int info = FILE_WAS_OPENED;
3415 files_struct *fsp = NULL;
3418 DEBUG(10,("create_file: access_mask = 0x%x "
3419 "file_attributes = 0x%x, share_access = 0x%x, "
3420 "create_disposition = 0x%x create_options = 0x%x "
3421 "oplock_request = 0x%x "
3422 "root_dir_fid = 0x%x, ea_list = 0x%p, sd = 0x%p, "
3424 (unsigned int)access_mask,
3425 (unsigned int)file_attributes,
3426 (unsigned int)share_access,
3427 (unsigned int)create_disposition,
3428 (unsigned int)create_options,
3429 (unsigned int)oplock_request,
3430 (unsigned int)root_dir_fid,
3431 ea_list, sd, smb_fname_str_dbg(smb_fname)));
3434 * Calculate the filename from the root_dir_if if necessary.
3437 if (root_dir_fid != 0) {
3438 status = get_relative_fid_filename(conn, req, root_dir_fid,
3440 if (!NT_STATUS_IS_OK(status)) {
3446 * Check to see if this is a mac fork of some kind.
3449 if (is_ntfs_stream_smb_fname(smb_fname)) {
3451 enum FAKE_FILE_TYPE fake_file_type;
3453 status = get_full_smb_filename(talloc_tos(), smb_fname,
3455 if (!NT_STATUS_IS_OK(status)) {
3459 fake_file_type = is_fake_file(fname);
3461 if (fake_file_type != FAKE_FILE_TYPE_NONE) {
3464 * Here we go! support for changing the disk quotas
3467 * We need to fake up to open this MAGIC QUOTA file
3468 * and return a valid FID.
3470 * w2k close this file directly after openening xp
3471 * also tries a QUERY_FILE_INFO on the file and then
3474 status = open_fake_file(req, conn, req->vuid,
3475 fake_file_type, fname,
3478 if (!NT_STATUS_IS_OK(status)) {
3482 ZERO_STRUCT(smb_fname->st);
3487 if (!(conn->fs_capabilities & FILE_NAMED_STREAMS)) {
3488 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
3493 /* All file access must go through check_name() */
3495 status = check_name(conn, smb_fname->base_name);
3496 if (!NT_STATUS_IS_OK(status)) {
3500 status = create_file_unixpath(
3501 conn, req, smb_fname, access_mask, share_access,
3502 create_disposition, create_options, file_attributes,
3503 oplock_request, allocation_size, sd, ea_list,
3506 if (!NT_STATUS_IS_OK(status)) {
3511 DEBUG(10, ("create_file: info=%d\n", info));
3514 if (pinfo != NULL) {
3517 return NT_STATUS_OK;
3520 DEBUG(10, ("create_file: %s\n", nt_errstr(status)));
3523 close_file(req, fsp, ERROR_CLOSE);